公开(公告)号：US20180106179A1

公开(公告)日：2018-04-19

申请号：US15294347

申请日：2016-10-14

申请人： Cummins Inc.

发明人： Minming Zhao ,  Josh Si Shao ,  Sriram Madhavan ,  Matthew John Zanker

IPC分类号： F01N9/00 ,  F01N3/20

CPC分类号： F01N3/208 ,  F01N3/2066 ,  F01N9/005 ,  F01N11/00 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/0422 ,  F01N2900/1602 ,  F01N2900/1622 ,  F01N2900/1814 ,  F02D41/08 ,  Y02T10/24 ,  Y02T10/47

摘要： An apparatus includes a stored reductant determination circuit structured to determine an amount of stored reductant in a component of an exhaust aftertreatment system, and a fuel mode economy circuit structured to control an amount of reductant added to the exhaust aftertreatment system during an engine idle mode of operation based on the amount of stored reductant.

公开(公告)号：US10968803B2

公开(公告)日：2021-04-06

申请号：US16550501

申请日：2019-08-26

申请人： Cummins Inc.

发明人： Minming Zhao ,  Josh Si Shao ,  Sriram Madhavan ,  Matthew John Zanker

IPC分类号： F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F02D41/08

摘要： An apparatus includes a stored reductant determination circuit structured to determine an amount of stored reductant in a component of an exhaust aftertreatment system, and a fuel mode economy circuit structured to control an amount of reductant added to the exhaust aftertreatment system during an engine idle mode of operation based on the amount of stored reductant.

公开(公告)号：US20180363606A1

公开(公告)日：2018-12-20

申请号：US15622830

申请日：2017-06-14

申请人： Cummins Inc.

发明人： Ashwin Balaji ,  Josh Si Shao ,  Minming Zhao

IPC分类号： F02M37/00 ,  F02M55/00 ,  F02M37/22 ,  F02M31/02

摘要： An engine mounted fuel manifold configured to inhibit gelling of fuel is provided, comprising: a housing comprising an internal chamber configured to receive drain fuel from a pump, an accumulator and a fuel injector, and a recirculation passage in fluid communication with the internal chamber to receive the drain fuel; a tank fuel port configured to receive fuel from a fuel tank; an output port configured to output fuel to a filter; a fuel supply passage in communication with the tank fuel port and the output port; and a thermal recirculation valve in fluid communication with the recirculation passage and the fuel supply passage, the valve responding to temperatures of fuel received by the tank fuel port being below a predetermined value by mixing drain fuel from the recirculation passage with fuel in the fuel supply passage, thereby causing mixed fuel to be supplied to the filter.

公开(公告)号：US10392990B2

公开(公告)日：2019-08-27

申请号：US15294347

申请日：2016-10-14

申请人： Cummins Inc.

发明人： Minming Zhao ,  Josh Si Shao ,  Sriram Madhavan ,  Matthew John Zanker

IPC分类号： F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F02D41/08

摘要： An apparatus includes a stored reductant determination circuit structured to determine an amount of stored reductant in a component of an exhaust aftertreatment system, and a fuel mode economy circuit structured to control an amount of reductant added to the exhaust aftertreatment system during an engine idle mode of operation based on the amount of stored reductant.

公开(公告)号：US09752488B2

公开(公告)日：2017-09-05

申请号：US14924228

申请日：2015-10-27

申请人： Cummins, Inc.

发明人： Cristian Aldana Zambrano ,  Michael J. McGuire ,  Josh Si Shao

IPC分类号： F01N3/00 ,  F01N11/00 ,  F02D41/08 ,  F02D41/00 ,  F02D41/02 ,  F01N3/20

CPC分类号： F01N11/007 ,  F01N3/2066 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2900/0416 ,  F01N2900/10 ,  F02D41/0087 ,  F02D41/022 ,  F02D41/0225 ,  F02D41/024 ,  F02D41/08 ,  F02D2041/227 ,  F02D2200/501 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

摘要： An apparatus includes a stationary conditions circuit structured to received information indicative of a stationary condition of a vehicle having an exhaust aftertreatment system; an engine circuit structured to cause an elevated operating mode in response to the detection of the stationary condition; and a nitrous oxide (NOx) monitor reset circuit. The NOx monitor reset circuit may be structured to: receive vehicle operation data indicative of an enable condition for a NOx monitor reset process; in response to the enable condition, receive NOx data indicative of a NOx amount exiting the exhaust aftertreatment system as part of the NOx monitor reset process; compare the NOx data to an estimated NOx amount; and in response to the comparison, selectively diagnose the exhaust aftertreatment system as one of a healthy and a degraded exhaust aftertreatment system.

公开(公告)号：US20170114697A1

公开(公告)日：2017-04-27

申请号：US14924228

申请日：2015-10-27

申请人： Cummins, Inc.

发明人： Cristian Aldana Zambrano ,  Michael J. McGuire ,  Josh Si Shao

IPC分类号： F01N11/00 ,  F01N3/20 ,  F02D41/02 ,  F02D41/08 ,  F02D41/00

CPC分类号： F01N11/007 ,  F01N3/2066 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2900/0416 ,  F01N2900/10 ,  F02D41/0087 ,  F02D41/022 ,  F02D41/0225 ,  F02D41/024 ,  F02D41/08 ,  F02D2041/227 ,  F02D2200/501 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

摘要： An apparatus includes a stationary conditions circuit structured to received information indicative of a stationary condition of a vehicle having an exhaust aftertreatment system; an engine circuit structured to cause an elevated operating mode in response to the detection of the stationary condition; and a nitrous oxide (NOx) monitor reset circuit. The NOx monitor reset circuit may be structured to: receive vehicle operation data indicative of an enable condition for a NOx monitor reset process; in response to the enable condition, receive NOx data indicative of a NOx amount exiting the exhaust aftertreatment system as part of the NOx monitor reset process; compare the NOx data to an estimated NOx amount; and in response to the comparison, selectively diagnose the exhaust aftertreatment system as one of a healthy and a degraded exhaust aftertreatment system.